<?php

declare(strict_types=1);

namespace App\State;

use ApiPlatform\Metadata\Operation;
use ApiPlatform\State\ProcessorInterface;
use App\Entity\ClientTicket;
use App\Entity\User;
use App\Repository\ClientTicketRepository;
use App\Service\NotificationService;
use DateTimeImmutable;
use Doctrine\ORM\EntityManagerInterface;
use Symfony\Bundle\SecurityBundle\Security;
use Symfony\Component\HttpKernel\Exception\AccessDeniedHttpException;
use Symfony\Component\HttpKernel\Exception\BadRequestHttpException;

/**
 * @implements ProcessorInterface<ClientTicket, ClientTicket>
 */
final readonly class ClientTicketNumberProcessor implements ProcessorInterface
{
    public function __construct(
        private EntityManagerInterface $entityManager,
        private Security $security,
        private ClientTicketRepository $clientTicketRepository,
        private NotificationService $notificationService,
    ) {}

    public function process(mixed $data, Operation $operation, array $uriVariables = [], array $context = []): ClientTicket
    {
        assert($data instanceof ClientTicket);

        $user = $this->security->getUser();
        assert($user instanceof User);

        $project = $data->getProject();
        if (null === $project) {
            throw new BadRequestHttpException('Project is required.');
        }

        // Admins can create tickets on any project; clients only on allowed projects
        if (!$this->security->isGranted('ROLE_ADMIN')) {
            if (null === $user->getClient()) {
                throw new AccessDeniedHttpException('Only client users can create tickets.');
            }

            if (!$user->getAllowedProjects()->contains($project)) {
                throw new AccessDeniedHttpException('You do not have access to this project.');
            }
        }

        $now = new DateTimeImmutable();

        $maxNumber = $this->clientTicketRepository->findMaxNumberByProjectForUpdate($project);
        $data->setNumber($maxNumber + 1);
        $data->setSubmittedBy($user);
        $data->setStatus('new');
        $data->setCreatedAt($now);
        $data->setUpdatedAt($now);

        $this->entityManager->persist($data);
        $this->entityManager->flush();

        $this->notificationService->createForTicketCreated($data);

        return $data;
    }
}